Combination look



(Model.)

2 Sheets-Sheet I. B. FRY.

COMBINATION LOCK.

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UNITED STATES@ PATENT GEEICE.

BENJAMIN ERY, 0E ERIE, PENNSYLVANIA, AssIeNoR To THE ART NOVELTYCOMPANY, .(LIMITEDJ 0E sAME PLAGE.

coMBlNATloN- LOCK- SPECIFICATION forming. part of Letters Patent No.380,028, dated March 2 7, 1888.`

Application filed October 3, 1887. Serial No. 251,358. (Model.)

To aZZ whom t may concern.-

Beit known that I, BENJAMIN FRY, a citizen of the United States,residing at Erie, in the county of Erie and State of Pennsylvania, haveinvented certain new anduseful Improvements in Combination-Locks; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enableothers skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, forming part of this specification.

My invention consists in the improvements in combination-locks forpost-office boxes and for other like purposes, hereinafter set forth andexplained, and illustrated in the accompanying drawings, in'which-Figure l is a perspective view of myimprovement on the door of apost-office box. Fig. 2 shows a view in elevation of the outside of thelock on the door. Fig. 3 shows a like view of the inside of same. Fig.i-shows a vertical section of the same on the line .fr in 'Fig'. 2,looking in the direction of the arrow.

Fig. 5 shows a longitudinal section of same on the line y in Fig. 2,looking in the direction of the arrow. Fig. 6 is a perspective view ofmy improvement, showing a modified form of bolt and catch mechanism.Fig. 7 is a view in elevation of the inside of the said modifi.- cation.Y

Like letters refer to like parts in all of the figures. y

In the construction of my improvement shown, A is a post-office box, andB the door of same. On the outside of the door B, I make, preferably,two circular depressions to receive dials C and D, which dials areprovided with letters or figures (not shown) in the usual man ner. Thesedials are provided with knobs C and D. From the dial D a spindle, d,passes through an opening in the door B, in which opening the spindle drotates.

On the inner end of the spindle d, I secure a serrated locking-disk,E,by means of a washer, d', the end of the spindle d being slightlyflattened to fit the oblong hole in the center of the Washer d', whichis secured in place by means of a screw, d2, in the end of the spindled, so that the washer cannot turn on the spindle. Y

In the edge of the disk E, Imake a slot o r notch, e, to receivelug e onthefend J of the lockinglever F, which lockinglever F is mounted upon astud-pin, f, on the inside of the door B.

The spindle c of the dial() passes through a vertically-slotted opening,G, in the door B- and through a round hole in arm K of the lockingleverF, in which hole the spindle c rotates. 'A serrated locking-disk, H, issecured to the inner end of the spindle c in the manner hereinbeforedescribed as to the spindle d and locking-disk D, the spindle c andthedial C and locking-disk H thereon being supported and rotating upon thebearing of the spindle c in the arm K of the locking-lever F.v Theserrated disk H is also provided with a notch or slot, h, adapted topass over a lug, I, on the inside of the door B when the disk Hisdepressed, as hereinafter described.

The lockinglever F is pivoted upon a study pin, f, as hereinbeforedescribed, the short end J thereof being provided with a lug, e',adapted 75 to engage with the periphery ofthe disk E or pass into thenotch e therein when in proper position therefor. The outer end, Ii, ofthe arm K forms the bolt portion of the lockinglever F, and is adaptedto engage with a catch on the inside of the box A.

The arm K- of the locking-lever `F is supported in the normal positionshown in the full lines thereof in Fig. 3 by a spring, N, secured to theinside of the door B,which spring permits the arm K of the locking-leverF and the dial Q and locking-disk H thereon to be depressed,asillustrated in the dotted lines 'in Fig. 3. y

On the inside of the box A, I secure a lever,

'0, having a catch, P, thereon in suitable position to engage with andsecure the bolt Ll of the lock when the door is closed. The lever O ispivoted upon a stud-pin, R, and provided with a spring, o, adapted toretain the lever O in the normal position illustrated in Fig. 1. rllherear end, S, of the lever O, I'extend back some distance along theinside of the box A, the end thereof being preferablyprovided with athumb-piece, T, by means whereof the rear Ioo end of the lever O can bedepressed, so as to disengage the hook P thereon from the lock bolt L.The end of the hook P is also beveled o in such shape that pressureapplied to the outside of the door causes the bolt L to raise the hook Puntil,'when the door is entirely closed, it passes into the hook' andengages therewith. It will thus be seen that by means of the movablecatch O P, I can either open the door from the inside of the box A orclose and lock it from the outside without operating the dials C and D,forming the combination.

In Figs. 6 and 7 Ishowa modified construction of the bolt and catch foraccomplishing the same purpose as hereinbefore described. In thisconstruction I make the bolt portion L of the locking-lever F somewhatlonger than that shown in Figs. 1, 3, and 5, and on this extension Isecure a sliding bolt, L', by means of slots n n therein and bolts n n',so that it will move longitudinally on the bolts n n the length of theslots 'n n. I also secure to this bolt L a knob, l, which can beconveniently reached from the inside of the box to slide back the boltL. At the inner end of the bolt L', I place a spring, U, which operatesto keep the bolt L in the normal position shown' in Figs. 6 and 7.

On the inside of the box A, adjacent to the end of the bolt L', I placea catch, O', having abeveled end, P', so that pressure applied to theoutside of the door causes the end of the bolt L to travel up on thebevel P until it is forced into the slot P2 by the action ofthe springU, so that the lock can be closed from the outside or opened from theinside, as hereinbefore described.

In operating my improved lock from the outside the dial D is iirstturned until the notch ein the disk E is opposite the lug e on the end Jof the locking-lever F. The dial C is then turned until the notch h inthe disk H is opposite the lug I on the door. Then by depressing theknob C, the arm K of the locking-lever F moves downward, as illustratedby the dotted lines in Figs. 3 and 7, until the bolt is disengaged fromthe catch, when the door of a lever-bolt mounted and oscillating on a.

stiidpin in the lock-frame, a stationary dial mounted on a spindleoperating in the lockframe, and a movable dial mounted on a spindleoperating in the lever-bolt, with a stud on the oscillating bolt adaptedto engage a locking-disk secured to the spindle of the stationary dial,a stud on the lock-frame adapted to engage a locking-disk secured to thespindle of the movable dial, and a spring adapted to raise and supportthe outer end of the lever-bolt,

substantially as and for the purpose set forth.

2. The combination, with the bolt of a. combinationlock, ofasupplementary sliding bolt and knob, substantially as and for thepurpose set forth.

3. In a combinationlock, the combination of a lever-bolt, F, mounted andoscillating upon a studpin,f, in the door B, a spring, N, on the door B,adapted to raise and support the outer end, K L, of the bolt F, astationary dial, D, mounted on a spindle, d, operating in the door B, amovable dial, C, mounted on a spindle, c, in the lever-bolt F, astud-pin, e', on the arm .I of the lever-bolt F, and astudpin, I, on thedoor B, with a catch, O P, on the door-frame A, adapted to engage theend L of the bolt F, substantially as and for the purpose set forth.

In testimony whereof I aix my signature in presence of two witnesses.

BENJAMIN FRY.

Witnesses:

D. W. FITCH, WM. P. HAYES.

